ofdm

说明：  无线传输系统中nRF2401芯片数据丢失问题的研究(Wireless transmission systems nRF2401 chip problem of data loss)

C-Type Filter Design Based on Power-Factor Correction for 12-pulse HVDC Converters

一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模块，并统括系统性能的仿真验证了系统设计的可靠性。(OFDM： coding modulation IFFT AWGN Mode FFT ……)

AIS信号（GMSK调制）2比特差分解调及其误码率曲线(2 bit differential demodulation and BER)

模仿超级终端风格的RS232串口调试工具 这是一个模仿Windows系统带的超级终端风格的RS232串口调试工具。非常容易读取和写入端口，发送支持ASCII字符模式，可以打开二进制文件以16进制格式显示发送。支持工作内容保存，下次加载。 里面的那个动画窗体加载出现蛮有意思，大家可以学习下。尤其对调试AT指令之类的比较方便。(RS232 serial debug tool imitating super terminal style This is a SuperTerminal style RS232 serial debugging tool that mimics the Windows system. It is easy to read and write ports, send ASCII character mode and open binary files to display in 16 binary format. Support work content to save, next load. Loading the animated form inside is quite interesting. You can learn from it. In particular, it is more convenient to debug AT instructions.)

说明：  毫米波以及MIMO系统仿真，附带matlab程序和论文！(Angle-based codebook for low-resolution hybrid precoding in millimeter-wave massive MIMO systems)

利用MATLAB实现多用户的扩频通信的发送和接受，程序可以直接跑，不需要改动！(The use of MATLAB implementation of multi-user spread spectrum communication send and receive, the program can be directly run, no changes!)

直接序列扩频通信中采用QPSK调制时，须将产生的串行数据首先串并变换成两路，本程序就是实现这种串并变换！(Direct sequence spread spectrum communications using QPSK modulation, it is necessary to have a string of serial data and converted into the first two, the process is to realize such a string, and transform!)

The HART Application Guide has been created by the HART Communication Foundation (HCF) to provide users of HART products with the information necessary to obtain the full benefits of HART digital instrumentation. The HART communication protocol is an open standard owned by the more than 100 member companies in the HCF. Products that use the HART protocol to provide both analog 4–20 mA and digital signals provide flexibility not available with any other communication technology.

this book describes hwo to chose optimal training sequence for an efficient mimo channel